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The AAPG/Datapages Combined Publications Database
Showing 106 Results. Searched 200,693 documents.
Sub-centennially resolved behavior of an accreting sandy shoreline over the past ∼ 1000 years
Thomas S.N. Oliver, Toru Tamura
Journal of Sedimentary Research (SEPM)
... considered to be one quarter of the wavelength, calculated by dividing the velocity in dry and saturated sands by the antenna frequency (Bristow 2009...
2021
Seismic interpretation of salt occurrences in the southern Canning Basin, Western Australia
Y. Zhan
Petroleum Exploration Society of Australia (PESA)
... resolution (30 m as a quarter of the wavelength), seismic profiles cannot image it as a thick transparent zone such as the Mallowa Salt. The Minjoo Salt...
2019
Chapter Four: Stratigraphic Interpretation
Alistair R. Brown
AAPG Special Volumes
... of the subsurface of finite thickness (around a quarter of a wavelength) during the deposition of which, in this area, conditions changed significantly...
2011
Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada
M. W. Lee, T. S. Collett, W. F. Agena
AAPG Special Volumes
... a quarter-wavelength resolution, the interval velocities from the 1-D inversion are averaged across about 25 m (82 ft) of depth interval. The general...
2009
Practical Stratigraphic Modeling and Interpretation: Section 3. Stratigraphic Models from Seismic Data
M. W. Schramm Jr., E. V. Dedman, J. P. Lindsey
AAPG Special Volumes
... only. An acoustically thin sandstone (less than one-quarter wavelength) gives a seismic response that varies in amplitude but not in shape...
1977
Seismic Profile Through Patrick Draw-Table Rock Area, East Flank Rock Springs Uplift, Wyoming
Robert T. Ryder, Myung W. Lee, Warren F. Agena, Robert C. Anderson
Wyoming Geological Association
... edge. The successful attempt to detect the stratigraphic trap at Patrick Draw, where the sandstone reservoir is near the one-quarter wavelength lower...
1989
Stratigraphic Modeling and Interpretation--Geophysical Principles and Techniques: Section 3. Stratigraphic Models from Seismic Data
Norman S. Neidell, Elio Poggiagliolmi
AAPG Special Volumes
.... As a practical matter, the size of the Fresnel zone is initially related to the quarter wavelength of the dominant frequency component of the seismic waveform...
1977
A Case History of Geoseismic Modeling of Basal Morrow-Springer Sandstones, Watonga-Chickasha Trend: Geary, Oklahoma--T13N, R10W: Section 3. Stratigraphic Models from Seismic Data
William A. Clement
AAPG Special Volumes
...; therefore, thickness should equal one-quarter the wavelength. Using the standard equation for wavelength () written: = V/f, where V equals...
1977
Using 3-D Seismic Volumetric Curvature Attributes to Identify Fracture Trends in a Depleted Mississippian Carbonate Reservoir: Implications for Assessing Candidates for CO2 Sequestration
Susan E. Nissen, Timothy R. Carr, Kurt J. Marfurt, E. Charlotte Sullivan
AAPG Special Volumes
.... Although short-wavelength components of curvature can be computed using as few as 9 traces, long-wavelength components of curvature are computed...
2009
Karst and Early Fracture Networks in Carbonates, Turks and Caicos Islands, British West Indies
Sean A. Guidry, Mark Grasmueck, Daniel G. Carpenter, Andrew M. Gombos Jr., Steven L. Bachtel, David A. Viggiano
Journal of Sedimentary Research (SEPM)
...). Processing of high-resolution 3D GPR data results in migrated images approaching quarter-wavelength vertical and horizontal resolution (Grasmueck et al. 2005...
2007
Flow of Weak Rocks in Appalachian Plateau Folds
D. V. Wiltschko , W. M. Chapple
AAPG Bulletin
... a wavelength of about 7.5 mi (11 km), ranging between 5 and 20 mi (8 and 32 km), and a structural relief from a few hundred to more than 2,500 ft (769! m...
1977
Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China
Hongliu Zeng, Robert Loucks, Xavier Janson, Guizhong Wang, Yiping Xia, Bingheng Yuan, Ligui Xu
AAPG Bulletin
.... Theoretical vertical seismic resolution, or one-quarter wavelength for the 25-Hz wavelet, is 20 ms in traveltime. Interpreters can therefore resolve two...
2011
Sediment Dispersal Patterns of the Outer Shelf to Upper Slope Paleocene-Eocene Wilcox Group, South-Central Texas Coast
Hongliu Zeng, William A. Ambrose, Wenlong Xu
GCAGS Journal
... of around 25 Hz at the Wilcox interval, the calculated vertical resolution (a quarter wavelength) is about 20 ms, or 130 ft (40 m) (at 13,000 ft...
2016
Three-Dimensional Connectivity of Point-Bar Deposits
Brian J. Willis, Hong Tang
Journal of Sedimentary Research (SEPM)
... and shifted downstream a quarter wavelength, and then continued to migrate by translation and expansion). Four patterns of channel migration, with and without...
2010
Ground-Penetrating-Radar Characterization and Porosity Evolution of An Upper Pleistocene Oolite-Capped Depositional Cycle, Red Bays, Northwest Andros Island, Great Bahama Bank
Colby S. Hazard,, Scott M. Ritter, John H. McBride, David G. Tingey, R. William Keach, II
Journal of Sedimentary Research (SEPM)
... than their theoretical resolutions. To obtain a full-resolution 3D GPR survey, a line spacing of less than a quarter wavelength is required (Grasmueck...
2017
Microstructure and mineral composition of Holocene stromatolites from Lagoa Vermelha, a hypersaline lagoon in Brazil: Insights into laminae genesis
Carolina N. Keim, Hélisson Nascimento dos Santos, Carolina Souza Santiago, Simone Pennafirme, Reiner Neumann, Jürgen Schnellrath, Inayá Lima, Mirian A.C. Crapez, Marcos Farina
Journal of Sedimentary Research (SEPM)
.... Polarized-light microscopy images of stromatolites. Crossed polarizers. In Parts B and C, a quarter-wavelength retardation plate was used to enhance colors...
2020
Sedimentology and stratigraphy of the earliest deltaic shorelines of the Paleocene Lower Wilcox Group in the Gulf of Mexico
Mariana I. Olariu
Journal of Sedimentary Research (SEPM)
... volume with a dominant frequency of 25 Hz. Calculated resolvable limit (a quarter wavelength) is about 20 ms (40 m) at roughly 4,000 m/s. Line spacing...
2023
Three-Dimensional Sedimentary Architecture of a Large, Mid-Channel Sand Braid Bar, Jamuna River, Bangladesh
James L. Best, Philip J. Ashworth,, Charles S. Bristow, Julie Roden,
Journal of Sedimentary Research (SEPM)
... subsurface structures can be found in Woodward et al. 2003). Assuming spatial resolution to be one quarter of the wavelength (Reynolds 1997), with 100...
2003
3-D Architecture and Sequence Stratigraphic Evolution of a Forced Regressive Top-Truncated Mixed-Influenced Delta, Cretaceous Wall Creek Sandstone, Wyoming, U.S.A.
Keumsuk Lee, George A. McMechan, M. Royhan Gani, Janok P. Bhattacharya, Xiaoxian Zeng, Charles D. Howell Jr.
Journal of Sedimentary Research (SEPM)
... traceable surface strewn with granules and pebbles. The inherent resolution limitation (a quarter wavelength) allows 50 MHz GPR to detect no lower than...
2007
Detailed internal architecture of a fluvial channel sandstone determined from outcrop, cores, and 3-D ground-penetrating radar: Example from the middle Cretaceous Ferron Sandstone, east-central Utah
Rucsandra M. Corbeanu, Kristian Soegaard, Robert B. Szerbiak, John B. Thurmond, George A. McMechan, Deming Wang, Steven Snelgrove, Craig B. Forster, Ari Menitove
AAPG Bulletin
... obscures the (Begin page 1598) GPR reflection from surface A, and where unit 1 pinches out against surface A and becomes thinner than one-quarter...
2001
Three-dimensional facies architecture and three-dimensional calcite concretion distributions in a tide-influenced delta front, Wall Creek Member, Frontier Formation, Wyoming
Keumsuk Lee, M. Royhan Gani, George A. McMechan, Janok P. Bhattacharya, Stephanie L. Nyman, Xiaoxian Zeng
AAPG Bulletin
... (a quarter wavelength) allows 50 MHz GPR to detect no lower than third-order surfaces.Figure 8. A northwest-southeasttrending, dip-oriented GPR profile...
2007
Seismic modeling in the analysis of deep-water sandstone termination styles
Kristina Bakke, Ian A. Kane, Ole J. Martinsen, Steen A. Petersen, Tor A. Johansen, Steinar Hustoft, Frode Hadler Jacobsen, Audun Groth
AAPG Bulletin
... and can occur if the layer thickness is less than a quarter of a wavelength (Widess, 1973); this can result in amplitude increases appearing larger than...
2013
Architectural analysis of subsurface meander-belt sandstones: A case study of a densely drilled oil field, Zhanhua sag, east of Bohai Bay Basin
Zhifeng Sun, Chengyan Lin, Xianguo Zhang, Dongxing Du, Yong Yang, and Jia Guo
AAPG Bulletin
... is approximately 30 Hz, and a quarter of wavelength is approximately 18 m (∼59 ft). The lithology of the upper succession of the Guantao Formation...
2020
SEDIMENTARY FACIES AND DEPOSITIONAL ENVIRONMENTS OF DIVERSE EARLY PALEOCENE FLORAS, NORTH-CENTRAL SAN JORGE BASIN, PATAGONIA, ARGENTINA
EMILY E. COMER, RUDY L. SLINGERLAND, J. MARCELO KRAUSE, ARI IGLESIAS, WILLIAM C. CLYDE, MARÍA SOL RAIGEMBORN, PETER WILF
PALAIOS
... of about 2. Resonance arises when the distance from the edge of the continental shelf to the shoreline is a quarter wavelength of the semi-diurnal...
2015
Spatial and Temporal Evolution of Coastal Depositional Systems and Regional Depositional Process Regimes: Campanian Western Interior Seaway, U.S.A.
Marijn Van Cappelle,, Gary J. Hampson, Howard D. Johnson
Journal of Sedimentary Research (SEPM)
... in an embayment when its dimensions are in resonance with the quarter wavelength of the tidal wave according to the following relationship (Pugh 1987...
2018